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Note 11 - Income Taxes and Deferred Tax Asset/Liability (Tables) | 12 Months Ended
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Dec. 31, 2012
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
|  | Years Ended December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Current tax expense (benefit) |  | $ | 588 |  |  | $ | 1,639 |  |  | $ | 6,410 |
Deferred tax expense (benefit) |  |  | (1,167 | ) |  |  | (18,651 | ) |  |  | 3,860 |
Total tax expense (benefit) |  | $ | (579 | ) |  | $ | (17,012 | ) |  | $ | 10,270 |
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
|  | As of December 31, |
|  | 2012 |  |  | 2011 |
|  | Current |  |  | Long Term |  |  | Current |  |  | Long Term |
Assets related to: |  |  |  |  |  |  |  |  |  |  |  |
Accrued compensation and other |  | $ | 1,803 |  |  | $ | -- |  |  | $ | 1,302 |  |  | $ | -- |
Amortization and impairment of goodwill |  |  | -- |  |  |  | 13,181 |  |  |  | -- |  |  |  | 15,900 |
Accreted interest to put |  |  | -- |  |  |  | 939 |  |  |  | -- |  |  |  | 587 |
Contingency on lawsuit |  |  | -- |  |  |  | 130 |  |  |  | -- |  |  |  | 391 |
Noncontrolling interest |  |  | -- |  |  |  | 915 |  |  |  | -- |  |  |  | -- |
Revaluation of put/call liabilities |  |  | -- |  |  |  | 2,194 |  |  |  | -- |  |  |  | -- |
Liabilities related to: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation of property and equipment |  |  | -- |  |  |  | (13,615 | ) |  |  | -- |  |  |  | (14,040 | )
Noncontrolling interest |  |  | -- |  |  |  | -- |  |  |  | -- |  |  |  | (1,720 | )
Other |  |  | -- |  |  |  | (771 | ) |  |  | -- |  |  |  | (290 | )
Net asset (liability) |  | $ | 1,803 |  |  | $ | 2,973 |  |  | $ | 1,302 |  |  | $ | 828 |
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
|  | Years Ended December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
|  | Amount |  |  | % |  |  | Amount |  |  | % |  |  | Amount |  |  | % |
Tax expense (benefit) at the U.S. federal statutory rate |  | $ | 5,997 |  |  |  | 35.0 | % |  | $ | (18,101 | ) |  |  | 35.0 | % |  | $ | 12,773 |  |  |  | 35.0 | %
State tax based on income, net of refunds and federal benefits |  |  | (58 | ) |  |  | (0.3 | ) |  |  | (573 | ) |  |  | 1.1 |  |  |  | 879 |  |  |  | 2.4 |
Taxes on subsidiaries’ and joint ventures’ earnings allocated to noncontrolling interests owners |  |  | (5,938 | ) |  |  | (34.7 | ) |  |  | (444 | ) |  |  | 0.9 |  |  |  | (2,498 | ) |  |  | (6.8 | )
Tax benefits of Domestic Production Activities Deduction |  |  | (84 | ) |  |  | (0.5 | ) |  |  | (202 | ) |  |  | 0.4 |  |  |  | (500 | ) |  |  | (1.4 | )
Impairment associated with goodwill that is not amortizable for tax |  |  | -- |  |  |  | -- |  |  |  | 2,603 |  |  |  | (5.0 | ) |  |  | -- |  |  |  | -- |
Non-taxable interest income |  |  | (529 | ) |  |  | (3.1 | ) |  |  | (376 | ) |  |  | 0.7 |  |  |  | (494 | ) |  |  | (1.4 | )
Other permanent differences |  |  | 33 |  |  |  | 0.2 |  |  |  | 81 |  |  |  | (0.2 | ) |  |  | 110 |  |  |  | 0.3 |
Income tax expense (benefit) |  | $ | (579 | ) |  |  | (3.4 | )% |  | $ | (17,012 | ) |  |  | 32.9 | % |  | $ | 10,270 |  |  |  | 28.1 | %

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